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A log splitter uses a pump with hydraulic oil to push a piston, which is attached to a chisel. The pump can generate a pressure of 2.12e7 Pa in the hydraulic oil, and the piston has a radius of 0.046 m. In a stroke lasting 24 s, the piston moves 0.64 m. What is the power needed to operate the log splitter's pump?
Two parallel metal rods form a plane inclined at 20 degrees to the horizontal. The upper end of the rods are connected together by a resistor of 166ohms, What is the maximum speed of the bar
A ball bearing is dropped from rest at a point A. At the instant it passes a mark 4.0 m below A, another ball bearing is released from rest from a position 5.0 m below A, How far does the second bearing fall in that time
My flashlight beam makes an angle of 60° with the surface of the water before it enters the water. what angle does the beam make with the surface
what is the maximum amount the spring may be stretched and the box remain at rest.
Two loudspeakers in a plane, 5 m apart, are playing the same frequency. If you stand 12 m in front of the plane of the speakers, What is the frequency of the sound
The block is spun at 50 , then the temperature of the rod is slowly increased. When the wax melts, the block slides out to the end of the rod. Illustrate what is the final angular velocity?
A railroad car with a mass of 2 x10^4 kg moving at 3.0 m/s collides and joins with 2 railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.20 m/s.
An airplane is flying with a velocity of 95m/s at an angle of 19.0^circ above the horizontal. When the plane is a distance 124m straight above a dog that is standing on level ground, suitcase drops out of luggage compartment.
An electron moving parallel to the x axis has an initial speed of 3.70x10^6 m/s at the origin. Calculate the potential difference between the origin and that point.
A balloon is filled with helium at a pressure of 2.4 x 10^5 Pa. The balloon is at a temperature of 18 degrees Celsius, How many helium atoms are contained in the balloon
A Ferris wheel is moving at an initial angular velocity of 1.0 rev/53 s. If the operator then brings it to a stop in 2.8 min, what is the angular acceleration of the Ferris wheel
A dog pulls on a pillow with a force of 2.2 N at the angle of 40° above the horizontal. Find the x and y components of the force.
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